BowJax Big Jax Guide Rod Dampener An important area of dampening for your bow is the cable guard and your string suppressor. If you have tried products on your strings and limbs and still have unwanted noise, chances are very good that the BowJax BigJax will take care of the problem. Simply put the BigJax on your cable guard and it acts as a great noise and vibration dampener, string suppressor dampener, and a cable slide stop. These fit a 3/8' rod and weigh 151 grains. They are packed individually and available in 9 colors (Black, Blue, Brown, Flo Green, Olive Drab, Orange, Pink, Purple and Red).